<?php
global $CFG;
require_once("$CFG->libdir/form/textarea.php");

/**
 * HTML class for htmleditor type element
 *
 * @author	   Jamie Pratt
 * @access	   public
 */
class MoodleQuickForm_htmleditor extends MoodleQuickForm_textarea{
	var $_type;
	var $_canUseHtmlEditor;
	var $_options=array('canUseHtmlEditor'=>'detect','rows'=>10, 'cols'=>45, 'width'=>0,'height'=>0, 'course'=>0);
	function MoodleQuickForm_htmleditor($elementName=null, $elementLabel=null, $options=array(), $attributes=null){
		parent::MoodleQuickForm_textarea($elementName, $elementLabel, $attributes);
		// set the options, do not bother setting bogus ones
		if (is_array($options)) {
			foreach ($options as $name => $value) {
				if (isset($this->_options[$name])) {
					if (is_array($value) && is_array($this->_options[$name])) {
						$this->_options[$name] = @array_merge($this->_options[$name], $value);
					} else {
						$this->_options[$name] = $value;
					}
				}
			}
		}
		if ($this->_options['canUseHtmlEditor']=='detect'){
			$this->_options['canUseHtmlEditor']=can_use_html_editor();
		}
		if ($this->_options['canUseHtmlEditor']){
			$this->_type='htmleditor';
			//$this->_elementTemplateType='wide';
		}else{
			$this->_type='textarea';
		}
		$this->_canUseHtmlEditor = $this->_options['canUseHtmlEditor'];
	}
	/**
	 * set html for help button
	 *
	 * @access   public
	 * @param array $help array of arguments to make a help button
	 * @param string $function function name to call to get html
	 */
	function setHelpButton($helpbuttonargs, $function='helpbutton'){
		if (!$this->_canUseHtmlEditor){
			if ('editorhelpbutton' == $function){
				$key = array_search('richtext', $helpbuttonargs);
				if ($key !== FALSE){
					array_splice($helpbuttonargs, $key, 1, array('text', 'emoticons'));
				}
			} elseif ('helpbutton' == $function && $helpbuttonargs[0] == 'richtext' && ((!isset($helpbuttonargs[2])) || $helpbuttonargs[2] == 'moodle')){
				//replace single 'richtext' help button with text and emoticon button when htmleditor off.
				return $this->setHelpButton(array('text', 'emoticons'), 'editorhelpbutton');
			}
		}
		return parent::setHelpButton($helpbuttonargs, $function);
	}

	function toHtml(){
		if ($this->_canUseHtmlEditor && !$this->_flagFrozen){
			ob_start();
			use_html_editor($this->getName(), '', $this->getAttribute('id'));
			$script=ob_get_clean();
		} else {
			$script='';
		}
		if ($this->_flagFrozen) {
			return $this->getFrozenHtml();
		} else {
			return $this->_getTabs() .
					print_textarea($this->_canUseHtmlEditor,
									$this->_options['rows'],
									$this->_options['cols'],
									$this->_options['width'],
									$this->_options['height'],
									$this->getName(),
									preg_replace("/(\r\n|\n|\r)/", '&#010;',$this->getValue()),
									$this->_options['course'],
									true,
									$this->getAttribute('id')).$script;
		}
	} //end func toHtml

	/**
	 * What to display when element is frozen.
	 *
	 * @access	public
	 * @return	string
	 */
	function getFrozenHtml()
	{
		$html = format_text($this->getValue());
		return $html . $this->_getPersistantData();
	} //end func getFrozenHtml
}
?>